The Effect of Osteotomy Dimension on Implant Insertion Torque, Healing Mode, and Osseointegration Indicators

Marin, Charles; Bonfante, Estevam A.; Granato, Rodrigo; Neiva, Rodrigo; Gil, Luiz Fernando; Marão, Heloísa Fonseca; Suzuki, Marcelo; Coelho, Paulo G.

doi:10.1097/id.0000000000000476

Cited by 17 publications

(22 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Marin et al [42] compared different undersized osteotomies (3.0, 3.25, and 3.5 mm) for the insertion of 3.75 mm diameter implants. Their results showed that the implant IT values increased in narrower osteotomies without negatively affecting the osseointegration process observed in posterior histological analysis.…”

Section: Discussionmentioning

confidence: 99%

Under-Drilling versus Hybrid Osseodensification Technique: Differences in Implant Primary Stability and Bone Density of the Implant Bed Walls

et al. 2020

View full text Add to dashboard Cite

The goal of this study was to evaluate the effects of two implant bed preparation techniques on the implant primary stability (IPS) and the bone density of the implant site. We completed 40 implant bed osteotomies in pig ribs using two techniques: osseodensification (OD) plus under-drilling (UD) with universal osseodensification drills (Test A), and under-drilling alone with drills of the same implant system (Test B). Implants with a 4.1 mm diameter and 10 mm length were inserted, and the IPS was evaluated with three methods: (insertion torque (IT), periotest (PTV), and resonance frequency analysis (RFA). The bone density was evaluated using micro-computed tomography. ANOVA and Tukey’s post-hoc test were used for comparison of the IPS values, and Kruskal–Wallis was used to evaluate the bone density. Statistical significance was set at p < 0.05. The tested B technique (UD) achieved a higher IPS compared to the Test A technique (OD + UD) for all the evaluation methods (p < 0.05). Bone density was higher at the apical and middle region in Test A compared to Test B and control sites (p < 0.05). We concluded that although the bone density increased with the hybrid OD technique with universal drills, implant beds prepared with UD using drills with geometry similar to that of the implant are more efficient at increasing IPS values.

show abstract

Section: Discussionmentioning

confidence: 99%

Under-Drilling versus Hybrid Osseodensification Technique: Differences in Implant Primary Stability and Bone Density of the Implant Bed Walls

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Obviously, the more sub-dimensioned the bed receiving the implant is, the greater the insertion torque. However, it is speculated that high levels of torque can cause a high compression in the bone tissue, which can lead to extensive bone remodeling over time [18]. Several other studies have shown that depending on the insertion torque of the implant and whether it is beyond the physiological tolerance limit, it may present microfractures or osteonecrosis by compression [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

New Implant Macrogeometry to Improve and Accelerate the Osseointegration: An In Vivo Experimental Study

et al. 2019

View full text Add to dashboard Cite

A new implant design with healing chambers in the threads was analyzed and compared with a conventional implant macrogeometry, both implants models with and without surface treatment. Eighty conical implants were prepared using commercially pure titanium (grade IV) by the company Implacil De Bortoli (São Paulo, Brazil). Four groups were performed, as described below: Group 1 (G1), traditional conical implants with surface treatment; group 2 (G2), traditional conical implants without surface treatment (machined surface); group 3 (G3), new conical implant design with surface treatment; group 4 (G4), new conical implant design without surface treatment. The implants were placed in the two tibias (n = 2 implants per tibia) of twenty New Zealand rabbits determined by randomization. The animals were euthanized after 15 days (Time 1) and 30 days (Time 2). The parameters evaluated were the implant stability quotient (ISQ), removal torque values (RTv), and histomorphometric evaluation to determine the bone to implant contact (%BIC) and bone area fraction occupancy (BAFO%). The results showed that the implants with the macrogeometry modified with healing chambers in the threads produced a significant enhancement in the osseointegration, accelerating this process. The statistical analyses of ISQ and RTv showed a significative statistical difference between the groups in both time periods of evaluation (p ≤ 0.0001). Moreover, an important increase in the histological parameters were found for groups G3 and G4, with significant statistical differences to the BIC% (in the Time 1 p = 0.0406 and in the Time 2 p < 0.0001) and the BAFO% ((in the Time 1 p = 0.0002 and in the Time 2 p = 0.0045). In conclusion, the result data showed that the implants with the new macrogeometry, presenting the healing chambers in the threads, produced a significant enhancement in the osseointegration, accelerating the process.

show abstract

“…With a shorter healing period of two instead of 4 weeks, this "healing chamber" is considered a key factor for secondary stability. Due to its different healing patterns, it does not have to undergo tissue remodeling [11,38,39]. Contrary to this, ODPs could lead to displacements above 50-150 μm resulting in fibrous bone formation and a poor long-term stability [14].…”

Section: Discussionmentioning

confidence: 99%

“…Contrary to this, ODPs could lead to displacements above 50-150 μm resulting in fibrous bone formation and a poor long-term stability [14]. With a reduction in primary stability and a secondary stability similar to SPs [10], test results have shown a shorter healing period [11,38,39] with lower degrees of compressive stress transferred to the surrounding bone. Nevertheless, in this study, implants inserted via ODP exceeded the clinically established lower limits for primary insertion.…”

Section: Discussionmentioning

confidence: 99%

Implant primary stability depending on protocol and insertion mode — an ex vivo study

et al. 2020

View full text Add to dashboard Cite

Background: Dental implant primary stability is thought to be a fundamental prerequisite for the long-term survival and success. The aim of this study was to analyze the influence of protocol and insertion mode on dental implant stability ex vivo. One hundred and twenty implants were inserted either manually or machine-driven into porcine mandibles by a standard or over-dimensioned protocol. Dental implant stability was measured via resonance frequency analysis (RFA), insertion torque (IT), and torque out (TO). Results: Statistically significant higher IT and TO values were seen after standard protocol insertion (p < 0.05), whereas manual and machine-driven insertion mode showed equivalent values. Conclusions: The over-dimensioned protocol exceeded the primary stability values recommended for immediate implant insertion; therefore, it could be recommended as well.

show abstract

The Effect of Osteotomy Dimension on Implant Insertion Torque, Healing Mode, and Osseointegration Indicators

Abstract: Based on the present methodology, the experimental alterations of surgical technic can be clinically used with no detrimental effect over the osseointegration process.

Cited by 17 publications

References 35 publications

Under-Drilling versus Hybrid Osseodensification Technique: Differences in Implant Primary Stability and Bone Density of the Implant Bed Walls

Under-Drilling versus Hybrid Osseodensification Technique: Differences in Implant Primary Stability and Bone Density of the Implant Bed Walls

New Implant Macrogeometry to Improve and Accelerate the Osseointegration: An In Vivo Experimental Study

Implant primary stability depending on protocol and insertion mode — an ex vivo study

Contact Info

Product

Resources

About